That UI only made sense if you already understood: - That there were 4 octets in an IP address. - Class-based IP addressing. - Subnet bit masks. The UI that

That UI only made sense if you already understood: - That there were 4 octets in an IP address. - Class-based IP addressing. - Subnet bit masks. The UI that replaced it was an improvement in that all it asked for was a series of numbers, separated by dots, constrained to 0-255.